exam Maths Puzzle Numerical Ability

An 80 page newspaper is in one section. The sheet with page 11 on it is missing. What other pages are missing?

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exam Other Question

Suppose a chord in a circle is 80 centimeters long and it is 30 centimeters from the center of the circle. Find the measure of a radius of the circle. Solving inequalities with absolute values

I need an example of this and a way to solve it.
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